Bonjour,
x+y+z = 5/6 + (- 1/24) + (- 7/12) = (5x4)/(6x4) - 1/24 - (7x2)/(12*2) = 20/24 - 1/24 - 14/24 = (20-1-14)/24 = 5/24.
Bonne journée.
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Bonjour,
x+y+z = 5/6 + (- 1/24) + (- 7/12) = (5x4)/(6x4) - 1/24 - (7x2)/(12*2) = 20/24 - 1/24 - 14/24 = (20-1-14)/24 = 5/24.
Bonne journée.